Pulp Riot premium developers are exclusively formulated for maximum performance and a creamy consistency when mixed with Pulp Riot lightener and haircolor products as directed. Vegan and cruelty-free. Mixing ratio for all techniques is 1:1.5 parts lightener to developer. For a thicker consistency mix 1:1 parts lightener to developer. For a thinner consistency mix 1:2 parts lightener to developer. Apply heat if needed.